Chat with redux state manager

serg1557733 af455d9bf8 first il y a 1 an
backend 970dfd378b first il y a 1 an
frontend af455d9bf8 first il y a 1 an
package-lock.json cca472ae25 add media query and some fix il y a 1 an
package.json cca472ae25 add media query and some fix il y a 1 an